Stibiotantalite and Pollucite Physical Properties

Stibiotantalite

Pollucite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Readily soluble in HF

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.86-2.94

1 7.18

1.8 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.9 Cleavage

{???} Perfect

None observed

1.10 Mohs Hardness

5.5-66.5-7

2 10

1.12 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Stibiotantalite and Pollucite Chemical Formula

While comparing Stibiotantalite and Pollucite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Stibiotantalite and Pollucite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

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Stibiotantalite and Pollucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.